Title:
【発明の名称】振動コンベヤ
Document Type and Number:
Japanese Patent JPH10513586
Kind Code:
A
Abstract:
PCT No. PCT/DK96/00049 Sec. 371 Date Jul. 25, 1997 Sec. 102(e) Date Jul. 25, 1997 PCT Filed Jan. 29, 1996 PCT Pub. No. WO96/23248 PCT Pub. Date Aug. 1, 1996A driving system for vibration conveyors of the resonance type has an electromagnetic circuit with an electromagnet with a yoke, with respect to which a running measurement of the current and voltage of the electromagnet is performed, that the electric properties obtained for the electromagnetic circuit as a result of the measurement are used to calculate an instantaneous airgap between the electromagnet and yoke, the value of which is used as a control value for the drive current supplied to the electromagnet, so that an essentially sinusoidal oscillation with a desired amplitude is maintained.
Inventors:
Niels Bent Hegard, Madsen
Christensen, Kurt Hazeldale
Christensen, Kurt Hazeldale
Application Number:
JP52256196A
Publication Date:
December 22, 1998
Filing Date:
January 29, 1996
Export Citation:
Assignee:
Paul Johansen Development A/S
International Classes:
B65G27/32; G05D19/02; (IPC1-7): G05D19/02; B65G27/32
Attorney, Agent or Firm:
Masaki Yamakawa (5 outside)